(2) lim _(xarrow infty )((dfrac {x+1)(x-1))}^-dfrac (x{2)}= () ;-|||-(A)1 (B) ^dfrac (1{2)} (C)0 (D) ^-1

A.lim _(xarrow 1)dfrac ({x)^2+x-2}({x)^2-1}=lim _(xarrow 1)dfrac ((x-1)(x+2))((x

)求下列极限:-|||-(1) lim _(xarrow 1)dfrac ({x)^2-x+1}({(x-1))^2} =-|||-(3) lim _(xarr

极限 lim _(xarrow infty )((dfrac {x+1)(x-1))}^x= () .

极限 lim _(xarrow infty )((dfrac {x+1)(x-1))}^x= __

(16) lim _(xarrow infty )((dfrac {x-1)(x+1))}^x ;

lim _(xarrow 1)(dfrac (2)({x)^2-1}-dfrac (1)(x-1))= (-|||-A.1 B. -dfrac (1)(2) C

计算 lim _(xarrow infty )dfrac ({(2x-2))^2(x-1)}({(x+1))^3+6}=..

lim _(xarrow 1)(dfrac (a)(1-{x)^2}+dfrac (x)(x-1))=dfrac (3)(2) = __

lim _(xarrow infty )(2-dfrac (1)(x)+dfrac (1)({x)^2});;

lim _(xarrow 0)[ dfrac (1)(2x)-dfrac (1)(x({e)^x+1)}] ;